package com.wpq.netty.discard;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;

import java.util.List;

public class TimeDecoder extends ByteToMessageDecoder {
    //
    @Override
    protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
      if(in.readableBytes()<4){
          return;
      }
       out.add(in.readBytes(4));
    }
}
